Controllable mesostructure, magnetic properties of soft magnetic Fe-Ni-Si by using selective laser melting from nickel coated high silicon steel powder
Article dans une revue avec comité de lecture
Author
Date
2018Journal
Applied Surface ScienceAbstract
Fe-Ni-Si soft magnetic parts, using Ni coated high silicon steel powder, were manufactured by selective laser melting process. The type of defect changes from porosity to cracks and the relative density increases, from 50% to 99%, with the decreasing laser scanning speed. The microstructural analyses indicate that the low laser scanning speed fully melted the nickel coating and high-silicon steel core. The EBSD study showed that the separated island and lamellar mesostructures appeared on the top and side view respectively. Moreover, no apparent texture were observed. The magnetization saturation of SLM processed sample decreased, as the laser scanning speed was increased. Consequently, the magnetic properties of SLM processed Fe-Ni-Si alloy also showed anisotropic feature in building and scanning directions, which can be attributed to their different mesostructure.
Files in this item
Related items
Showing items related by title, author, creator and subject.
-
Article dans une revue avec comité de lectureKANG, Nan; LIN, X.; GUITTONNEAU, Fabrice; LIAO, H.L.; HUANG, W.D.; CODDET, C.; EL MANSORI, Mohamed (Elsevier, 2018)In this research, Al-Fe-Cr quasicrystal (QC) reinforced Al-based metal matrix composites were in-situ manufactured by using selective laser melting (SLM) from the powder mixture. The parametrical optimization based on our ...
-
Article dans une revue avec comité de lectureKANG, Nan; CAO, Yang; ZHAO, Chunling; ZHAO, Yu; LIN, Chin; CODDET, Christian; EL MANSORI, Mohamed; CONIGLIO, Nicolas (American Society of Mechanical Engineers, 2021)In the course of the selective laser melting (SLM) process, the part is built layer by layer involving partial re-melting/heating of the previous layer, called as intrinsic heat treatment. Therefore, superficial properties ...
-
Article dans une revue avec comité de lectureIn this work, the tribological behaviour of selective laser melting (SLM) processed hypereutectic Al-Si alloy is investigated by the ball on disc test with focus on the effect of silicon content (18 and 50 wt %). Different ...
-
Article dans une revue avec comité de lectureIn this work, Al-Fe-Cr quasicrystal reinforced Al matrix composite was in-situ prepared by using selective laser melting from powder mixture of Al-Cu-Fe-Cr quasicrystal and pure Al. The effect of selective post-aging ...
-
Article dans une revue avec comité de lectureKANG, Nan; MA, Wenyou; LI, Fuhai; LIU, Min; LIAO, Hanlin; EL MANSORI, Mohamed; HERAUD, Lorene (Elsevier, 2018)In this work, tungsten carbide (WC) reinforced maraging steel matrix composites were in-situ manufactured by selective laser melting (SLM) from powder mixture. The SLM processed samples presented high relative density (over ...